Nissan X-Trail 32. Instruction — part 1912
SN-104
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT PARK ASSIST]
U1000-01 CAN COMM CIRCUIT
U1000-01 CAN COMM CIRCUIT
DTC Description
INFOID:0000000010735602
DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real-time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independently). In CAN communication, control units are connected with 2
communication lines (CAN-H, CAN-L) allowing a high rate of information transmission with less wiring. Each
control unit transmits/receives data but selectively reads required data only.
CAN Communication Signal Chart. Refer to
LAN-41, "CAN COMMUNICATION SYSTEM : CAN Communica-
DTC DETECTION LOGIC
POSSIBLE CAUSE
CAN communication system
FAIL-SAFE
• Obstacle detection function is stopped
• Alarm display is displayed on the information display of combination meter
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1.
Turn ignition switch ON.
2.
Turn ignition switch OFF and wait at least 30 seconds.
3.
Turn ignition switch ON and wait at least 2 seconds or more.
4.
Select “Self Diagnostic Result” mode of “SONAR” using CONSULT.
5.
Check DTC.
Is DTC U1000 detected?
YES
>> Proceed to
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
.
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010735603
1.
PERFORM DTC CONFIRMATION PROCEDURE AGAIN
With CONSULT
1.
Turn ignition switch ON.
2.
Erase DTC.
3.
Perform DTC confirmation procedure again. Refer to
.
Is DTC U1000 detected again?
YES
>> Perform the trouble diagnosis for CAN communication system. Refer to
.
NO
>> INSPECTION END
DTC
Trouble diagnosis
(Trouble diagnosis contents)
Detecting condition
U1000
CAN COMM CIRCUIT
(CAN communication circuit)
Sonar control unit is not transmitting or receiving CAN communication signal for
2 seconds or more.
SN
U1010-49 CONTROL UNIT (CAN)
SN-105
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT PARK ASSIST]
C
D
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F
G
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U1010-49 CONTROL UNIT (CAN)
DTC Description
INFOID:0000000010735604
DTC DETECTION LOGIC
POSSIBLE CAUSE
Sonar control unit
FAIL-SAFE
• Obstacle detection function is stopped
• Alarm display is displayed on the information display of combination meter
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1.
Turn ignition switch ON.
2.
Turn ignition switch OFF and wait at least 30 seconds.
3.
Turn ignition switch ON and wait at least 2 seconds or more.
4.
Select “Self Diagnostic Result” mode of “SONAR” using CONSULT.
5.
Check DTC.
Is DTC U1010-49 detected?
YES
>> Proceed to
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010735605
1.
PERFORM DTC CONFIRMATION PROCEDURE AGAIN
With CONSULT
1.
Turn ignition switch ON.
2.
Erase DTC.
3.
Perform DTC confirmation procedure again. Refer to
.
Is DTC U1010-49 detected again?
YES
>> Replace sonar control unit. Refer to
SN-111, "Removal and Installation"
NO
>> INSPECTION END
DTC
Trouble diagnosis
(Trouble diagnosis contents)
Detecting condition
U1010-49
CONTROL UNIT (CAN)
[Control unit (CAN)]
Malfunction is detected during initial diagnosis of the sonar control unit CAN con-
troller.
SN-106
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT PARK ASSIST]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
SONAR CONTROL UNIT
SONAR CONTROL UNIT : Diagnosis Procedure
INFOID:0000000010735610
1.
CHECK FUSE
Check for blown fuses.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK IGNITION POWER SUPPLY CIRCUIT
1.
Turn ignition switch ON.
2.
Check the voltage between sonar control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace sonar control unit power supply harness.
3.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect sonar control unit connector.
3.
Check the continuity between sonar control unit harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace sonar control unit ground harness.
Power source
Fuse No.
Ignition switch ON or START
#30
Terminals
Condition
Standard
Voltage
(+)
(
−
)
Sonar control unit
Connector
Terminal
B101
12
Ground
Ignition switch ON
9.0 - 16.0 V
Battery voltage
Sonar control unit
Ground
Continuity
Connector
Terminal
B101
15
Existed
SN
SONAR SYSTEM SWITCH
SN-107
< DTC/CIRCUIT DIAGNOSIS >
[WITHOUT PARK ASSIST]
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SONAR SYSTEM SWITCH
Description
INFOID:0000000010792463
The sonar control unit turns the sonar system activation OFF when inputting the sonar system switch signal.
Diagnosis Procedure
INFOID:0000000010792465
1.
CHECK SONAR SYSTEM SWITCH SIGNAL
1.
Turn ignition switch ON.
2.
Check the voltage between sonar control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace sonar control unit. Refer to
SN-111, "Removal and Installation"
2.
CHECK SONAR SYSTEM SWITCH SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect sonar control unit harness connector and sonar system switch harness connector.
3.
Check the continuity between sonar control unit harness connector and sonar system switch harness con-
nector.
4.
Check the continuity between sonar control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK SONAR SYSTEM SWITCH GROUND CIRCUIT
Check the continuity between sonar system switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK SONAR SYSTEM SWITCH
Check the sonar system switch.
Is the inspection result normal?
Terminals
Voltage
(Approx.)
(+)
(
−
)
Sonar control unit
Connector
Terminal
B101
16
Ground
12.0 V
Sonar control unit
Sonar system switch
Continuity
Connector
Terminal
Connector
Terminal
B101
16
M142
1
Existed
Sonar control unit
Ground
Continuity
Connector
Terminal
B101
16
Not existed
Sonar system switch
Ground
Continuity
Connector
Terminal
M142
2
Existed
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